J(eff)=3/2 metallic phase and unconventional superconductivity in GaTa4Se8
DC Field | Value | Language |
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dc.contributor.author | Jeong, Min Yong | - |
dc.contributor.author | Chang, Seo Hyoung | - |
dc.contributor.author | Lee, Hyeong Jun | - |
dc.contributor.author | Sim, Jae-Hoon | - |
dc.contributor.author | Lee, Kyeong Jun | - |
dc.contributor.author | Janod, Etienne | - |
dc.contributor.author | Cario, Laurent | - |
dc.contributor.author | Said, Ayman | - |
dc.contributor.author | Bi, Wenli | - |
dc.contributor.author | Werner, Philipp | - |
dc.contributor.author | Go, Ara | - |
dc.contributor.author | Kim, Jungho | - |
dc.contributor.author | Han, Myung Joon | - |
dc.date.accessioned | 2021-08-12T02:40:15Z | - |
dc.date.available | 2021-08-12T02:40:15Z | - |
dc.date.issued | 2021-02 | - |
dc.identifier.issn | 2469-9950 | - |
dc.identifier.issn | 2469-9969 | - |
dc.identifier.uri | https://scholarworks.bwise.kr/cau/handle/2019.sw.cau/48085 | - |
dc.description.abstract | By means of density functional theory plus dynamical mean-field theory (DFT DMFT) calculations and resonant inelastic x-ray scattering (RIXS) experiments, we investigate the high-pressure phases of the spin-orbit-coupled J(eff) = 3/2 insulator GaTa4Se8. Its metallic phase, derived from the Mott state by applying pressure, is found to carry J(eff) = 3/2 moments. The characteristic excitation peak in the RIXS spectrum maintains its destructive quantum interference of J(eff) at the Ta L-2 edge up to 10.4 GPa. Our exact diagonalization-based DFT DMFT calculations including spin-orbit coupling also reveal that the J(eff) = 3/2 character can be clearly identified under high pressure. These results establish the intriguing nature of the correlated metallic magnetic phase, which represents the first confirmed example of J(eff) = 3/2 moments residing in a metal. They also indicate that the pressure-induced superconductivity is likely unconventional and influenced by these J(eff) = 3/2 moments. Based on a self-energy analysis, we furthermore propose the possibility of doping-induced superconductivity related to a spin-freezing crossover. | - |
dc.language | 영어 | - |
dc.language.iso | ENG | - |
dc.publisher | AMER PHYSICAL SOC | - |
dc.title | J(eff)=3/2 metallic phase and unconventional superconductivity in GaTa4Se8 | - |
dc.type | Article | - |
dc.identifier.doi | 10.1103/PhysRevB.103.L081112 | - |
dc.identifier.bibliographicCitation | PHYSICAL REVIEW B, v.103, no.8 | - |
dc.description.isOpenAccess | Y | - |
dc.identifier.wosid | 000621221900007 | - |
dc.identifier.scopusid | 2-s2.0-85102008865 | - |
dc.citation.number | 8 | - |
dc.citation.title | PHYSICAL REVIEW B | - |
dc.citation.volume | 103 | - |
dc.type.docType | Article | - |
dc.publisher.location | 미국 | - |
dc.relation.journalResearchArea | Materials Science | - |
dc.relation.journalResearchArea | Physics | - |
dc.relation.journalWebOfScienceCategory | Materials Science, Multidisciplinary | - |
dc.relation.journalWebOfScienceCategory | Physics, Applied | - |
dc.relation.journalWebOfScienceCategory | Physics, Condensed Matter | - |
dc.description.journalRegisteredClass | scie | - |
dc.description.journalRegisteredClass | scopus | - |
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